src/flights/identifier/FlightId.java (12cfefd) - Software engineering : Airport library · Portfolio Code

FlightId.java

package com.uca.flights;

import com.uca.data_validation.IdentifierValidator;

/**
 * Represent a flight identifier, the prefix of the company plus an integer on 4 digits
 * @Author Cesano Ugo, Colmerauer Clément
 * 
 */
public class FlightId implements Comparable<FlightId> //Pas besoinde clone car non modifiable
{
	/**Flight id value*/
	final private String value;
	
	/**
     * Constructor
     * @param value the flight id value
     * @throws IllegalArgumentException on null or empty parameter
     */
	FlightId(String value)
	{
		if(!IdentifierValidator.isFlightIdValid(value))
		{
			throw new IllegalArgumentException("Invalid flight id.");
		}

this.value = value;
	}

/**
     * Getter
     * @return flight id value
     */
	public String getValue()
	{
		return this.value;
	}

/**
     * Redefinition of toString
     * @return the value of the flight id
     */
	@Override
	public String toString()
	{
		return this.value;
	}

/**
     * Redefinition of compareTo
     * @param other the FlightId to compare to
     * @return 0 if other has the same value, 1 else
     * @throws IllegalArgumentException on null parameter
     */
	@Override
	public int compareTo(FlightId other)
	{
		if(other == null)
		{
			throw new IllegalArgumentException("FlightId can't be null.");
		}

if(this.value == other.getValue())
		{
			return 0;
		}
		return 1;
	}

/**
     * Redefinition of equals
     * @param other the FlightId to compare to
     * @return true if other has the same value, false else
     * @throws IllegalArgumentException on null or not FlightId parameter
     */
	@Override 
	public boolean equals(Object other)
	{
		if(other == null)
		{
			throw new IllegalArgumentException("FlightId can't be null.");
		}
		if(!(other instanceof FlightId))
		{
			throw new IllegalArgumentException("Must be compared with flight id.");			
		}
		
		FlightId f = (FlightId)other;
		return compareTo(f) == 0;
	}

/**
     * Redefinition of hashCode
     * @return the hashcode
     */
	@Override
	public int hashCode()
	{
		return this.value == null ? 0 : this.value.length();
	}

}

Software engineering : Airport library

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